1. (

• boisterous ,
• rambunctious ,
• robustious ,
• rumbustious ,
• unruly

) noisy and lacking in restraint or discipline; "a boisterous crowd"; "a social gathering that became rambunctious and out of hand"; "a robustious group of teenagers"; "beneath the rumbustious surface of his paintings is sympathy for the vulnerability of ordinary human beings"; "an unruly class" ;